# Building permits at 5850, Los Angeles County, CA 11 permits issued within a quarter mile in the last 30 days, at least five times the monthly pace before that. One permit on record here. The newest, Jun 17, 2025: Convert (E) 755 sq.ft. Within a quarter mile, the county has issued 20 more permits (19 projects) since May 1. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Jun 17, 2025 | Alteration or repair | Convert (E) 755 sq.ft. 3-Car detached garage to 1 -story accessory dwelling unit (adu). No additional s.f. Proposed) consisting of 2 bed, 1 bath, kitchen, living & dining area with walk in pantry | $98,000 | [UNC-BLDR241227012717](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR241227012717/) | ## Within ¼ mi since May 1, 2026 20 permits in the circle. From our copy of the county's data (last 24 months). ### This block (250 to 1,000 ft), 13 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 1, 2026 | [541 S Keenan Avenue](https://nearbypermits.com/los-angeles-county/address/541-s-keenan-avenue/) | 420 ft S | Electrical | Replace 2 exterior gfcis at front and backyard | Not listed | [UNC-ELEC260921009832](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260921009832/) | | Oct 1, 2026 | [541 S Keenan Avenue](https://nearbypermits.com/los-angeles-county/address/541-s-keenan-avenue/) | 420 ft S | Roofing | *Permit for permitted areas only, 13x16 patio* Tear off and reroof patio attached to rear structure, replacing 3.5 squares of CRRC#: 1202-0011a Replacing synthetic underlayment as needed CRRC#: 1202-0011a American Standard Coatings ASC American APP 4.5 CW Asphaltic Membrane Bright White SRI: 105 *EL | $1,200 | [UNC-BLDR260929009581](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260929009581/) | | Oct 1, 2026 | [541 S Keenan Avenue](https://nearbypermits.com/los-angeles-county/address/541-s-keenan-avenue/) | 420 ft S | Roofing | *Permit for permitted areas only, front covered porch not included in scope of work* Tear off and reroof main SFD only, installing 21.5 squares of CRRC#: 0890-0009 Replacing synthetic underlayment as needed CRRC#: 0890-0009 Owens Corning Roofing and Asphalt, LLC TruDefinition® Duration® Cool Amber O | $13,000 | [UNC-BLDR260921009312](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260921009312/) | | Sep 30, 2026 | [566 S Gerhart Avenue](https://nearbypermits.com/los-angeles-county/address/566-s-gerhart-avenue/) | 840 ft SW | Mechanical (HVAC) | C/o 2 ton mini split (like for like) | Not listed | [UNC-MECH260923003902](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260923003902/) | | Sep 15, 2026 | [507 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/507-williamson-avenue/) | 980 ft W | Plumbing | Plumbing for kitchen and bath remodel only with no structural changes. | $35,000 | [UNC-PLMB260915004035](https://nearbypermits.com/los-angeles-county/permit/UNC-PLMB260915004035/) | | Sep 15, 2026 | [557 S Keenan Avenue](https://nearbypermits.com/los-angeles-county/address/557-s-keenan-avenue/) | 580 ft S | Plumbing | Remove and replace 2 exterior bibs at front and backyard | Not listed | [UNC-PLMB260910003989](https://nearbypermits.com/los-angeles-county/permit/UNC-PLMB260910003989/) | | Sep 15, 2026 | [507 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/507-williamson-avenue/) | 980 ft W | Mechanical (HVAC) | Mechanical for kitchen and bath remodel only with no structural changes. | $35,000 | [UNC-MECH260915003794](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260915003794/) | | Sep 15, 2026 | [507 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/507-williamson-avenue/) | 980 ft W | Electrical | Electrical for kitchen and bath remodel only with no structural changes. | $35,000 | [UNC-ELEC260915009557](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260915009557/) | | Sep 15, 2026 | [507 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/507-williamson-avenue/) | 980 ft W | Alteration or repair | Kitchen and bath remodel only with no structural changes. | $35,000 | [UNC-BLDR260915009088](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260915009088/) | | May 29, 2026 | [546 S Gerhart Avenue #A](https://nearbypermits.com/los-angeles-county/address/546-s-gerhart-avenue-%23a/) | 690 ft SW | Plumbing | Sewer to convert existing first floor garage to a 639 sf ADU [1bed/1bath] refer to bldr250520005773 | Not listed | [UNC-SEWR260519001451](https://nearbypermits.com/los-angeles-county/permit/UNC-SEWR260519001451/) | | May 29, 2026 | [546 S Gerhart Avenue #A](https://nearbypermits.com/los-angeles-county/address/546-s-gerhart-avenue-%23a/) | 690 ft SW | Mechanical (HVAC) | Mechanical to convert existing first floor garage to a 639 sf ADU [1bed/1bath] refer to bldr250520005773 | Not listed | [UNC-MECH260519002228](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260519002228/) | | May 29, 2026 | [546 S Gerhart Avenue #A](https://nearbypermits.com/los-angeles-county/address/546-s-gerhart-avenue-%23a/) | 690 ft SW | Electrical | Electrical to convert existing first floor garage to a 639 sf ADU [1bed/1bath] refer to bldr250520005773 | Not listed | [UNC-ELEC260519005166](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260519005166/) | | May 29, 2026 | [546 S Gerhart Avenue #A](https://nearbypermits.com/los-angeles-county/address/546-s-gerhart-avenue-%23a/) | 690 ft SW | Alteration or repair | Convert existing first floor garage to a 639 sf ADU [1bed/1bath] | $100,000 | [UNC-BLDR250520005773](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR250520005773/) | ### Farther (1,000 ft to ¼ mi), 7 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 15, 2026 | [505 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/505-williamson-avenue/) | 0.19 mi W | Mechanical (HVAC) | Mechanical for kitchen and bath remodel only with no structural changes. | $35,000 | [UNC-MECH260915003791](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260915003791/) | | Sep 15, 2026 | [505 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/505-williamson-avenue/) | 0.19 mi W | Electrical | Electrical for kitchen and bath remodel only with no structural changes. | $35,000 | [UNC-ELEC260915009554](https://nearbypermits.com/los-angeles-county/permit/UNC-ELEC260915009554/) | | Sep 1, 2026 | [556 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/556-williamson-avenue/) | 0.19 mi W | Plumbing | Remove/replace of 40 gal gas water heater in the outside shed. Like for like in the same location. | Not listed | [UNC-PLMB260820003647](https://nearbypermits.com/los-angeles-county/permit/UNC-PLMB260820003647/) | | Aug 27, 2026 | [573 Williamson Avenue](https://nearbypermits.com/los-angeles-county/address/573-williamson-avenue/) | 0.24 mi W | Mechanical (HVAC) | C/O 35K Wall Furnace (like for like, same location) | Not listed | [UNC-MECH260813003413](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260813003413/) | | Aug 3, 2026 | [637 S Simmons Avenue](https://nearbypermits.com/los-angeles-county/address/637-s-simmons-avenue/) | 0.24 mi SW | Roofing | *PERMIT FOR PERMITTED AREAS ONLY* REROOF DETACHED GARAGE ONLY 5 SQUARES OF CRRC 0890-0033 Owens Corning Roofing and Asphalt, LLC TruDefinition® Duration® Cool Plus Golden Meadow Asphalt Shingle Tan SRI 22 | $5,000 | [UNC-BLDR260803007585](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260803007585/) | | Aug 3, 2026 | [637 S Simmons Avenue](https://nearbypermits.com/los-angeles-county/address/637-s-simmons-avenue/) | 0.24 mi SW | Roofing | *PERMIT FOR PERMITTED AREAS ONLY* REROOF MAIN HOUSE ONLY 13 SQUARES OF CRRC 0890-0033 Owens Corning Roofing and Asphalt, LLC TruDefinition® Duration® Cool Plus Golden Meadow Asphalt Shingle Tan SRI 22 | $10,000 | [UNC-BLDR260730007527](https://nearbypermits.com/los-angeles-county/permit/UNC-BLDR260730007527/) | | Jul 8, 2026 | [554 S Sadler Avenue](https://nearbypermits.com/los-angeles-county/address/554-s-sadler-avenue/) | 0.24 mi W | Mechanical (HVAC) | Single wall furnace change out - like for like | Not listed | [UNC-MECH260707002860](https://nearbypermits.com/los-angeles-county/permit/UNC-MECH260707002860/) | ## Zoning requests nearby We don't list zoning cases for Los Angeles County yet. Look them up on the county's Regional Planning Commission page: https://planning.lacounty.gov/public-hearings-and-meetings/regional-planning-commission/ --- Source: LA County Public Works, Building and Safety permit data (https://www.arcgis.com/home/item.html?id=b2a835d49c194029a525fb60cf24aa59). Checked 2026-10-12 01:54 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 20 nearby: https://nearbypermits.com/los-angeles-county/address/5850/